EP4071260A4 - High strength steel sheet having excellent delayed fracture resistance - Google Patents
High strength steel sheet having excellent delayed fracture resistance Download PDFInfo
- Publication number
- EP4071260A4 EP4071260A4 EP20915995.3A EP20915995A EP4071260A4 EP 4071260 A4 EP4071260 A4 EP 4071260A4 EP 20915995 A EP20915995 A EP 20915995A EP 4071260 A4 EP4071260 A4 EP 4071260A4
- Authority
- EP
- European Patent Office
- Prior art keywords
- steel sheet
- high strength
- strength steel
- fracture resistance
- delayed fracture
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 229910000831 Steel Inorganic materials 0.000 title 1
- 230000003111 delayed effect Effects 0.000 title 1
- 239000010959 steel Substances 0.000 title 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/02—Ferrous alloys, e.g. steel alloys containing silicon
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/46—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for sheet metals
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/04—Ferrous alloys, e.g. steel alloys containing manganese
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/18—Hardening; Quenching with or without subsequent tempering
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/18—Hardening; Quenching with or without subsequent tempering
- C21D1/19—Hardening; Quenching with or without subsequent tempering by interrupted quenching
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/18—Hardening; Quenching with or without subsequent tempering
- C21D1/19—Hardening; Quenching with or without subsequent tempering by interrupted quenching
- C21D1/22—Martempering
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/18—Hardening; Quenching with or without subsequent tempering
- C21D1/25—Hardening, combined with annealing between 300 degrees Celsius and 600 degrees Celsius, i.e. heat refining ("Vergüten")
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/56—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering characterised by the quenching agents
- C21D1/60—Aqueous agents
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D6/00—Heat treatment of ferrous alloys
- C21D6/004—Heat treatment of ferrous alloys containing Cr and Ni
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D6/00—Heat treatment of ferrous alloys
- C21D6/02—Hardening by precipitation
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
- C21D8/02—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
- C21D8/0205—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips of ferrous alloys
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
- C21D8/02—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
- C21D8/0221—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips characterised by the working steps
- C21D8/0226—Hot rolling
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
- C21D8/02—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
- C21D8/0221—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips characterised by the working steps
- C21D8/0236—Cold rolling
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
- C21D8/02—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
- C21D8/0247—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips characterised by the heat treatment
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
- C21D8/02—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
- C21D8/0247—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips characterised by the heat treatment
- C21D8/0263—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips characterised by the heat treatment following hot rolling
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
- C21D8/02—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
- C21D8/0247—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips characterised by the heat treatment
- C21D8/0273—Final recrystallisation annealing
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/001—Ferrous alloys, e.g. steel alloys containing N
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/002—Ferrous alloys, e.g. steel alloys containing In, Mg, or other elements not provided for in one single group C22C38/001 - C22C38/60
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/06—Ferrous alloys, e.g. steel alloys containing aluminium
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/08—Ferrous alloys, e.g. steel alloys containing nickel
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/14—Ferrous alloys, e.g. steel alloys containing titanium or zirconium
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/16—Ferrous alloys, e.g. steel alloys containing copper
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
- C22C38/42—Ferrous alloys, e.g. steel alloys containing chromium with nickel with copper
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
- C22C38/50—Ferrous alloys, e.g. steel alloys containing chromium with nickel with titanium or zirconium
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
- C22C38/54—Ferrous alloys, e.g. steel alloys containing chromium with nickel with boron
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D2211/00—Microstructure comprising significant phases
- C21D2211/004—Dispersions; Precipitations
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D2211/00—Microstructure comprising significant phases
- C21D2211/008—Martensite
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Heat Treatment Of Sheet Steel (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2020007808A JP7425610B2 (en) | 2020-01-21 | 2020-01-21 | High-strength steel plate with excellent delayed fracture resistance |
PCT/JP2020/049182 WO2021149463A1 (en) | 2020-01-21 | 2020-12-28 | High strength steel sheet having excellent delayed fracture resistance |
Publications (2)
Publication Number | Publication Date |
---|---|
EP4071260A1 EP4071260A1 (en) | 2022-10-12 |
EP4071260A4 true EP4071260A4 (en) | 2024-05-01 |
Family
ID=76993332
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP20915995.3A Pending EP4071260A4 (en) | 2020-01-21 | 2020-12-28 | High strength steel sheet having excellent delayed fracture resistance |
Country Status (7)
Country | Link |
---|---|
US (1) | US20230040459A1 (en) |
EP (1) | EP4071260A4 (en) |
JP (1) | JP7425610B2 (en) |
KR (1) | KR20220111699A (en) |
CN (1) | CN115003834B (en) |
MX (1) | MX2022008956A (en) |
WO (1) | WO2021149463A1 (en) |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2007154289A (en) * | 2005-12-08 | 2007-06-21 | Nippon Steel Corp | METHOD FOR PRODUCING HIGH IMPACT RESISTANT STEEL PIPE EXCELLENT IN DELAYED FRACTURING CHARACTERISTIC OF 1,700 MPa OR MORE OF TENSILE STRENGTH |
US20130040165A1 (en) * | 2011-08-10 | 2013-02-14 | Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.) | High-strength steel sheet excellent in seam weldability |
US20160369367A1 (en) * | 2014-01-14 | 2016-12-22 | Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.) | High-strength steel sheet and process for producing same |
US20180100212A1 (en) * | 2015-03-25 | 2018-04-12 | Jfe Steel Corporation | Cold-rolled steel sheet and manufacturing method therefor |
WO2018123356A1 (en) * | 2016-12-28 | 2018-07-05 | 株式会社神戸製鋼所 | High-strength steel sheet and high-strength electrogalvanized steel sheet |
US20190003004A1 (en) * | 2015-12-21 | 2019-01-03 | Posco | Vehicle part having high strength and excellent durability, and manufacturing method therefor |
WO2019132342A1 (en) * | 2017-12-26 | 2019-07-04 | 주식회사 포스코 | Hot-rolled steel sheet having excellent impact resistance, steel pipe, member, and manufacturing methods therefor |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2007052775A1 (en) * | 2005-10-31 | 2007-05-10 | Jfe Steel Corporation | High-strength steel excellent in delayed fracture resistance characteristics and metal bolts |
JP5402191B2 (en) * | 2009-04-15 | 2014-01-29 | Jfeスチール株式会社 | Ultra-high-strength cold-rolled steel sheet with excellent stretch flangeability and manufacturing method thereof |
JP5466576B2 (en) | 2010-05-24 | 2014-04-09 | 株式会社神戸製鋼所 | High strength cold-rolled steel sheet with excellent bending workability |
JP5906154B2 (en) * | 2012-07-20 | 2016-04-20 | 株式会社神戸製鋼所 | High strength steel plate with excellent delayed fracture resistance and method for producing the same |
JP6040753B2 (en) * | 2012-12-18 | 2016-12-07 | 新日鐵住金株式会社 | Hot stamping molded article excellent in strength and hydrogen embrittlement resistance and method for producing the same |
RU2638611C1 (en) * | 2013-12-11 | 2017-12-14 | Арселормиттал | Martensitic steel resistant to delayed fracture and method of manufacture |
KR101917472B1 (en) * | 2016-12-23 | 2018-11-09 | 주식회사 포스코 | Tempered martensitic steel having low yield ratio and excellent uniform elongation property, and method for manufacturing the same |
JP2018109222A (en) * | 2016-12-28 | 2018-07-12 | 株式会社神戸製鋼所 | High strength steel sheet and high strength electrogalvanized steel sheet |
JP7143987B2 (en) | 2018-07-10 | 2022-09-29 | 三正通商株式会社 | Multi-layer underlay tape |
-
2020
- 2020-01-21 JP JP2020007808A patent/JP7425610B2/en active Active
- 2020-12-28 EP EP20915995.3A patent/EP4071260A4/en active Pending
- 2020-12-28 CN CN202080093566.7A patent/CN115003834B/en active Active
- 2020-12-28 KR KR1020227023693A patent/KR20220111699A/en unknown
- 2020-12-28 WO PCT/JP2020/049182 patent/WO2021149463A1/en unknown
- 2020-12-28 US US17/790,890 patent/US20230040459A1/en active Pending
- 2020-12-28 MX MX2022008956A patent/MX2022008956A/en unknown
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2007154289A (en) * | 2005-12-08 | 2007-06-21 | Nippon Steel Corp | METHOD FOR PRODUCING HIGH IMPACT RESISTANT STEEL PIPE EXCELLENT IN DELAYED FRACTURING CHARACTERISTIC OF 1,700 MPa OR MORE OF TENSILE STRENGTH |
US20130040165A1 (en) * | 2011-08-10 | 2013-02-14 | Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.) | High-strength steel sheet excellent in seam weldability |
US20160369367A1 (en) * | 2014-01-14 | 2016-12-22 | Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.) | High-strength steel sheet and process for producing same |
US20180100212A1 (en) * | 2015-03-25 | 2018-04-12 | Jfe Steel Corporation | Cold-rolled steel sheet and manufacturing method therefor |
US20190003004A1 (en) * | 2015-12-21 | 2019-01-03 | Posco | Vehicle part having high strength and excellent durability, and manufacturing method therefor |
WO2018123356A1 (en) * | 2016-12-28 | 2018-07-05 | 株式会社神戸製鋼所 | High-strength steel sheet and high-strength electrogalvanized steel sheet |
WO2019132342A1 (en) * | 2017-12-26 | 2019-07-04 | 주식회사 포스코 | Hot-rolled steel sheet having excellent impact resistance, steel pipe, member, and manufacturing methods therefor |
Non-Patent Citations (1)
Title |
---|
See also references of WO2021149463A1 * |
Also Published As
Publication number | Publication date |
---|---|
EP4071260A1 (en) | 2022-10-12 |
JP2021113353A (en) | 2021-08-05 |
CN115003834B (en) | 2023-10-31 |
CN115003834A (en) | 2022-09-02 |
WO2021149463A1 (en) | 2021-07-29 |
US20230040459A1 (en) | 2023-02-09 |
JP7425610B2 (en) | 2024-01-31 |
KR20220111699A (en) | 2022-08-09 |
MX2022008956A (en) | 2022-08-15 |
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Ipc: C21D 1/60 20060101ALI20240327BHEP Ipc: C21D 1/25 20060101ALI20240327BHEP Ipc: C21D 1/22 20060101ALI20240327BHEP Ipc: C21D 1/19 20060101ALI20240327BHEP Ipc: C21D 1/18 20060101ALI20240327BHEP Ipc: C21D 6/02 20060101ALI20240327BHEP Ipc: C21D 6/00 20060101ALI20240327BHEP Ipc: C21D 8/02 20060101ALI20240327BHEP Ipc: C21D 9/46 20060101ALI20240327BHEP Ipc: C22C 38/00 20060101ALI20240327BHEP Ipc: C22C 38/06 20060101ALI20240327BHEP Ipc: C22C 38/04 20060101ALI20240327BHEP Ipc: C22C 38/02 20060101ALI20240327BHEP Ipc: C22C 38/54 20060101ALI20240327BHEP Ipc: C22C 38/50 20060101ALI20240327BHEP Ipc: C22C 38/42 20060101AFI20240327BHEP |